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SA Power Outage 2016

1414° Thermal Energy Storage at Hunter Valley Solar Farm

We are currently performing feasibility study and procuring costs to incorporate 1~5, 1414° Thermal Energy Storage Systems (TESS) at a privately funded solar farm north of Cessnock in the Hunter valley, NSW, depending on the final array type, this solar farm will harvest between 20~50MW day.

Installing a 1414° TESS unit in sub-station, adjacent to the solar farm, allows the Solar Farm the option to first send the energy directly into the TESS unit to be store & dispatch at a better rate in Peak demand times, thus shortening the break-even investment time significantly or Export the power directly into AustGrid network as it is been harvested.

As a by-product, a TESS unit provides significant heat, that can be used by close proximity businesses, thus saving them using electricity of gas to Heat water or air for usage in various fields like Hot water for washing, manufacturing or swimming pool heating, to mention just a few.

NB: The 1414° Thermal Energy Storage System (TESS) is currently only for commercial applications.

  1. 1414° TESS is best suited to utilise what would otherwise be wasted energy from the likes of excess power from Solar, Wind & Aqua generation, by converting the electrical energy to heat Silicon (Sand) to 1'414 degrees.
  2. TESS can take any input voltage, and transform the incoming energy/voltage to the internal TESS operating voltage.
  3. 1414° TESS unit has successfully been tested to drive a jet turbine with the hot air coming from the TESS unit.
  4. The Jet Turbine turns a large heavy flywheel that turns a large Alternator to provides power, 1414° is developed a turbine to operate on NG, and possibly Diesel, Ethanol or any alternative fuels in the near future.
  5. Clients only need to specify the input volts/megawatts and the device will be design accordingly.
  6. It takes up to *800kW to melt one ton of Silicon (Si) from room temperature (e.g. *300kW to raise Si from 30 deg to 1414°, then *500kW power to convert the Si from solid to molten, with no change in temperature.
  7. The first operational prototype has one tonne of Si, the 10 MWh TESS will use 20 tonnes of Si.
  8. A 10 MWh TESS unit is usually delivered as a fully housed and sealed unit, approx. the size of an 12mt shipping container & double the width.

10MW TESS Unit.Approx. 16'000kW (1.6MW) of power is initially required to get a 10MWh TESS unit operational, before the power can be drawn from it.

What 1414° Molten Silicon looks like.

1414° Silicon image

The final cost to install a fully commissioned Solar Farm varies considerably, as Labour plays a large part, based on a TESS unit been delivered as a fully housed & sealed unit, will reduce the commissioning cost, however the TES unit can be delivered in sections and assembled on site for difficult sites if required.

The main consideration between either first sending enough power to fill a TESS unit (image right) or the direct Export power into AustGrid network, will largely rely on a higher price paid for the stored TESS energy sold during Peak Power times.

No matter what system is used, the solar farm may including motors & software that all play a significant part of the initial supply cost.  The power conversion stations, Cabling and Installation cost, inc. Sub-Station cost, are as equally expensive, and need to be planed well in advance, as speed of installation is critical to enabling a quicker return on investment.

The most important features for a solar farm is installing either Single or Duel Axis Tracking units, due to the significant improved energy harvesting to feed the TESS units...

* Approximately.

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